Fredonia, Alabama has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 10.4 °C (low) to 23.4 °C (high). Annual precipitation averages 1384 Millimeters. Fredonia is located in USDA Plant Hardiness Zone 8a. The growing season typically runs from the last frost around Mar. 21 - Mar. 31 through the first frost around Nov. 1 - Nov. 10.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 0.4 °C | 13.1 °C | 132.59 mm |
| February | 2.1 °C | 15.2 °C | 130.81 mm |
| March | 5.3 °C | 19.6 °C | 135.64 mm |
| April | 9.1 °C | 23.7 °C | 118.11 mm |
| May | 14.2 °C | 27.7 °C | 99.31 mm |
| June | 18.6 °C | 30.8 °C | 114.05 mm |
| July | 20.4 °C | 32.4 °C | 130.05 mm |
| August | 20.1 °C | 31.8 °C | 103.63 mm |
| September | 17 °C | 29.3 °C | 94.23 mm |
| October | 10.6 °C | 24.2 °C | 84.07 mm |
| November | 4.6 °C | 18.7 °C | 103.63 mm |
| December | 1.9 °C | 14.3 °C | 137.92 mm |
| Annual | 10.4 °C | 23.4 °C | 1384.04 mm |
| Average First Frost Date | Nov. 1 - Nov. 10 |
| Average Last Frost Date | Mar. 21 - Mar. 31 |
| Average Days With Frost | 50-75 Days |
| Plant Hardiness Zone | Zone 8a : -12.2°C to -9.4°C |
| Plant Hardiness Zone - 2012 | Zone 8a : -12.2°C to -9.4°C |
| Current Drought Conditions | Normal |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |